First post, by Dimitris97
Hello! I have this IBM 5155 for a year now working perfectly and suddenly during power on I get one long beep and then two short ones, indicating a problem with the cga card, and then garbled text on the screen
Note that the character rom is different than usual, having a memotek chip (probably with Greek characters since this was found in a Greek factory)
Any ideas how to proceed with this?😕